Zobrazeno 1 - 10
of 101
pro vyhledávání: '"Ahovi Kponou"'
Autor:
Ahovi Kponou, Satish Dhawan, O. Jinnouchi, J. Wood, Wuzheng Meng, G. Igo, Alexander Khodinov, A. Nass, W. Haeberli, Hiroyuki Okada, Y. I. Makdisi, R. L. Gill, C. A. Whitten, A. Bravar, G. Bunce, H. Huang, E. J. Stephenson, I. G. Alekseev, A. N. Zelenski, Norio Saito, H. M. Spinka, T. Wise, K. Kurita, D. G. Underwood, D. N. Svirida
Publikováno v:
Nuclear Physics B - Proceedings Supplements. 146:77-81
Interference phenomena in (polarized) hadron collisions have often led to spectacular spin effects in the final state. These effects are expressed in terms of the spin observables, like the analyzing power AN. The interference of the electromagnetic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b2306a1f443778e85df2184487e9364d
https://doi.org/10.1016/j.nuclphysbps.2005.02.066
https://doi.org/10.1016/j.nuclphysbps.2005.02.066
Autor:
John Ritter, Edward Beebe, J. G. Alessi, Ahovi Kponou, K. Prelec, Alexander Pikin, Louis Snydstrup
Publikováno v:
Journal of Physics: Conference Series. 2:28-34
Successful operation of the BNL EBIS with electron current up to 10 A provides optimism that EBIS operation with even higher electron current should be possible. We are now considering key aspects of the design for an EBIS operating with electron cur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::706e65c4bb8c67418a4f45704ab59f6d
https://doi.org/10.1088/1742-6596/2/1/004
https://doi.org/10.1088/1742-6596/2/1/004
Publikováno v:
Journal of Physics: Conference Series. 2:174-181
We report on computer studies to determine the acceptance of the Electron Beam Ion Source Test Stand (EBTS) at BNL. Knowledge of the acceptance is a useful guide in selecting a source of primary ions, and in designing a transfer line which best match
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ede6420bfa107da28568ba03e432cbd
https://doi.org/10.1088/1742-6596/2/1/021
https://doi.org/10.1088/1742-6596/2/1/021
Autor:
Edward Beebe, Ahovi Kponou, John Ritter, Alexander Pikin, David Graham, V. Zajic, K. Prelec, J. G. Alessi
Publikováno v:
Journal of Physics: Conference Series. 2:164-173
Most design goals of the BNL Test EBIS Project have been exceeded and we are confident that an EBIS meeting RHIC requirements can be built. Achieved parameters include 10 A electron beam current, ion charge state above Au32+, and greater than 55 nC t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f121e2535dc8eb889054c133a81b58a3
https://doi.org/10.1088/1742-6596/2/1/020
https://doi.org/10.1088/1742-6596/2/1/020
Autor:
V. Klenov, Masahiro Okamura, Andreas Lehrach, V. Zoubets, G. Wight, A. N. Zelenski, H. Huang, Yoshiharu Mori, Ahovi Kponou, V. LoDestro, B. Briscoe, J. G. Alessi, S. Kokhanovski, John Ritter, T. Takeuchi, P. Levy, D. Raparia, G. Dutto
Publikováno v:
Review of Scientific Instruments. 73:888-891
A new optically pumped polarized H− ion source (OPPIS) was developed for the RHIC polarization program and successfully used for the first polarized beam commissioning at RHIC. The OPPIS produces in excess of 1.0 mA H− ion current at about 80% po
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3300cd1e1cca725bb0760bd5fbf91e49
https://doi.org/10.1063/1.1427669
https://doi.org/10.1063/1.1427669
Autor:
C. M. Chu, Kevin Brown, Ahovi Kponou, S. Y. Lee, A. Yokosawa, D. G. Underwood, L. A. Ahrens, J.W. Glenn, Michael Syphers, K. Reece, M. Bai, H. M. Spinka, P. Cameron, H. Huang, K. Krueger, C. E. Allgower, J. G. Alessi, G. Bunce, Dong-O Jeon, W. van Asselt, Y. I. Makdisi, L. G. Ratner, Thomas Roser, N. W. Williams, E. D. Courant, N. Tsoupas, A. U. Luccio
Publikováno v:
Physical Review Letters. 84:1184-1187
A new type of spin depolarization resonance has been observed at the Brookhaven Alternating Gradient Synchrotron (AGS). This spin resonance is identified as a strong closed-orbit sideband around the dominant intrinsic spin resonance. The strength of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b2e03a2500aff7a9d8eeb9209f912d56
https://doi.org/10.1103/physrevlett.84.1184
https://doi.org/10.1103/physrevlett.84.1184
Autor:
John Ritter, Ahovi Kponou, J. G. Alessi, M. Tiunov, Alexander Pikin, Louis Snydstrup, K. Prelec, Edward Beebe, G. Kuznetsov
Publikováno v:
Review of Scientific Instruments. 75:1557-1559
Based on the successful experience of the Brookhaven National Laboratory test electron beam ion sources (EBIS), the relativistic heavy ion collider (RHIC) EBIS design utilizes a 10 A electron beam to produce the required ion source output intensity o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::550d47ba88ed1d60ab6e77330716b90b
https://doi.org/10.1063/1.1691514
https://doi.org/10.1063/1.1691514
Autor:
Ahovi Kponou, Edward Beebe, J. G. Alessi, Alexander Pikin, Masahiro Okamura, Y. Tan, G. Kuznetsov, John Ritter, D. Raparia
Publikováno v:
The Review of scientific instruments. 83(2)
RHIC electron beam ion source has been commissioned to operate as a versatile ion source on RHIC injection facility supplying ion species from He to Au for Booster. Except for light gaseous elements RHIC EBIS employs ion injection from several extern
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d5f2dc959fbdd99d075125910183c35e
https://pubmed.ncbi.nlm.nih.gov/22380200
https://pubmed.ncbi.nlm.nih.gov/22380200
Autor:
N. W. Williams, D. Lopiano, D. D. Caussyn, A. Yokosawa, W. van Asselt, H. Huang, D. Grosnick, K. Reece, G. Bunce, D. G. Underwood, L. A. Ahrens, L. G. Ratner, S. Y. Lee, A.U. Luccio, H. M. Spinka, Derun Li, J. G. Alessi, T. Roser, A. G. Ufimtsev, Ahovi Kponou, M. E. Beddo, Yousef Makdisi, Kevin Brown
Publikováno v:
Physical Review Letters. 73:2982-2985
A 9[degree] solenoidal spin rotator or 5% partial Siberian Snake was used to successfully accelerate polarized protons for the first time to 10.8 GeV kinetic energy in the Brookhaven Alternating Gradient Synchrotron with partial depolarization due to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b7f38acbf64e481981d033b3caeae26b
https://doi.org/10.1103/physrevlett.73.2982
https://doi.org/10.1103/physrevlett.73.2982
Autor:
O. Gould, J. G. Alessi, D. Graham, K. Prelec, Ahovi Kponou, Edward Beebe, John Ritter, Alexander Pikin
Publikováno v:
Review of Scientific Instruments. 73:699-701
Excellent progress has been made in the operation of the Brookhaven National Laboratory electron beam ion source (EBIS), which is a prototype for an EBIS that could meet requirements for a RHIC preinjector. We have achieved very stable operation of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a964b77aeb5a1849bd15b6814024ee61
https://doi.org/10.1063/1.1429777
https://doi.org/10.1063/1.1429777